Well-point.



W. KELLY.

WELL PUINT.

APPLICATION m50 APR.25.1911.

Patented Feb. 19, 1918.

' provided with bound together in v*iiniTiiD sTATns PAY' ENT OFFICE.,

WILLIAM KELLY, F GRAND ISLAND, NEBRASKA.

specification of Letters Patent. Patented Feb, 1,9, 1918.

Application filed A911125, 1917. Serial No. 164,437.

To all 'who/1L 'it may concern.'

Be it known that, l, W'ilimmr KELLY, a citizen of the United Statesot America, and resident ot (irand Island, in the county of Hall and State of Nebraska, have invented cert-ain new and useful Improve-ments "in Well-Points, of which the following is a specification. ,V

This invention relates to well points and particularly to casiiigs adapted. for use in wells, the saine being of a sectional type and means whereby they are a manner to afford means of communication between the external and internal surfaces of the said casings at the joints, means being provided for permitting li uid to ndits way'to the passages of the joints while at the saine time preventing the accumulation of foreign 'substances suoli as gravel, dirt, and the like into the ducts or passages or in the interior of the casing.

A further object of this invention is to` provide means for holding the sections of 'the easing in spaced relation to cach other` and provide n, bearing,r whereby one may be supported on the other while they are, at the Sametime, bound together, as stated.

With the foregoing and other objects in view, the in ventionconsists in the details of construction, and in the arrangement andv combination of parts to be hereinafter more fully set forth and claimed.

In describing the invention in detail,

reference will be had to the accompanying drawings formingr part. of th-isspecification, wherein like characters denotecorresponding parts in the several views, and in which-4 Figure l illustrates a vertical sectional view of a portion of a. well point embodying the invention;

Fig. 2 illustrates -a plan view of one of the 'sections of the casing on an enlarged scale; and

Figl 3 illustrates an enlarged Idetail vertical sectional view through a fragment of two of the sections on a line corresponding with the line 3-3 of Fig. 2.

In:v these drawings l denotesy a series of.

sections which are of uniform construction vand each of said sections has a series of sl ots 5 in its outerwall, the said slots being' flared inwardly from the surface so that the size of each opening increases from the said surin each section.

i tate the applicationA face inwardly. The function or )urpose of these slots is to permit water oruid to run or percolale tlirc '.igh the restricted openings while at the saine time preclud trance of gravel, dirt or the like, the -said fluid then gravitating to the lower end of the'section where it will be permitted to reach the interior of the casing, as will prese'ntly appearv The 4ends ot the sections are beveled inwardly as at t5 so that when the sections are superimposed, one upon the other, the space between the-in increases from the edges to the inner surfaces so that Huid may more readily find its way to the interior of the casing. When fluid passes down the slots into the space 6, it may flow to the interior of the casing comparatively free of ini purities such as gravel, dirt or the like. The ends of the sections have corresponding lugs which are adapted to abut when one section is placed on the other Aand tl'ieselugs form bearings so that .when the sections are bound together, as will presently. appear, one is iiriiily seated on .the other.

In order to provide means for building up the sections while at the same time binding them together, cach section has a. plurality of longitudinally disposed apertures 8 which are adapted to aline when. the sections are assembled with relation to one another and I preferably employ tour of said apertures Bindin rods 9 extend through the apertures of t ie-sections and l prefer that two of the rods shall extend through two sections and-that another pair of bi ndin g .rods extend through two sections whereas they are stepped with vrelation to the other two rods. By this arrangement,

sections since the projecting rods will faciliof the sections `to those previously placed and they can be bound toget-her by nuts 10 threaded on the bolts.

I' claim 4 l. A well point comprising sectional cas-V ings, each having slots in its outer surface, the said slots being flared inwn-rdly from the said outersurfaoe, the ends of said sectionsbeing beveled inwardly, lugs at the ends of said sections adapted to abut lugs of the contiguous sections, said sections having longitudinally disposed apertures, and sets of bol's nxi'cndng through said sections, one sections, said Sections having aperturas; set nl.' bolts; lming in stepped rela't'ion iin the t'lxuxoilu'ough, bolts projecting through apvr- 10 other svt 0l bolts. Turns of two conl'iguous Sectmns, and hulls 2. ln n well point, sectional cusings, euch cxindng tlunllgh other apertureso'f v,each 5 having sluis ux'nndng longtudnnlly they@ nl" sind sections 11nd through aperturas of caf from 'eml tu end, (lm. ends nl tllv said socullmr cnntvgunus Smtuns. onH boing bowled, lugs 0n the Suid mds adapted lo @Ngage .lugs of the contiguolvls VILLIAM KELLY. 

